Welcome to ViralTV! Freedom of content, free of Corporate Greed or Censorship.
People & Blogs
Sub Category
Get MagellanTV here: https://try.magellantv.com/arvinash and get an exclusive offer for our viewers: an extended, month-long trial, FREE. MagellanTV has the largest and best collection of Science content anywhere, including Space, Physics, Technology, Nature, Mind and Body, and a growing collection of 4K. This new streaming service has 3000 great documentaries. Check out our personal recommendation and MagellanTV’s exclusive playlists: https://www.magellantv.com/genres/science-and-tech
PATREON:
https://patreon.com/arvinash
Quantum gravity videos:
https://youtu.be/S3Wtat5QNUA
https://youtu.be/NsUm9mNXrX4
3D gravity animation courtesy of: https://1ucasvb.tumblr.com/
Albert Einstein was ridiculed when he first published his theory. People thought it was too weird and radical to be real. Einstein wasn’t satisfied with his theory either, because the theory did not apply if Gravity was present or if the observer was accelerating. One day, while observing a window washer on a ladder near his patent office, he had a thought experiments.
He imagined what would happen if the worker were to fall. He put himself in the window washer’s perspective, and imagined what he would experience as he was falling. He realized that if he was falling, gravity would be the only force acting on him. He would be accelerating towards the ground, but since the ground would not be pushing up on his body, he would feel no weight. And this would be no different than being weightless in space.
In a way gravity and acceleration were different ways to describe the same thing. The way to connect gravity in the theory of relativity was through the idea of acceleration, and this became the basis of general relativity.
Einstein imagined being in a room with no windows, and a bathroom scale. It would weigh 80 Kgs, What if the room was on a space ship accelerating in an upward direction at 9.8 m/s/s. He would feel the same weight. There would be no difference
He imagined what would happen if he took a flashlight and pointed it from one side of the room to the other, as the space ship was accelerating upwards. If he had a ruler, he could measure the height of the light on the other side of the room. He realized that the height measured on the wall would be lower than the source of the light, because the floor of the room would be rushing upwards at ever faster speeds, as the light was propagating across the room. The light beam would appear to curve downward.
However, If you were on earth, and you measured the two heights, you may think that there should be no difference. That light should go straight to the other side of the room. Einstein thought it can’t be because it would violate the principle of equivalence. Acceleration of the room on a space should be no different than the room under the influence of gravity on earth. He realized that this meant light must bend in the presence of a gravitational field.
But light should be going on the shortest path. Then he realized, maybe the shortest path between two points is not a straight line but a curved line near gravity.
This was the key insight that Einstein had about gravity. But in order to express this mathematically, it required very complicated mathematics that even a genius like Einstein could not easily figure out. He contacted an old buddy from his college days, mathematician Marcel Grossman.
It’s important to note that the trampoline analogy you normally see on TV shows and youtube videos like this is a 2D plane used for visualization purposes only, but it is really in 3D.
In order for this theory to really be taken seriously, it had to make a prediction that could be tested, which was confirmed by the fact that it explained Mercury’s orbit which had been a mystery for decades because it had a precession. General relativity predicted exactly the precession that Mercury actually has.
But many skeptics still remained. The most fool proof confirmation came 4 years after he published it,when a team led English Astronomer, Arthur Eddington. in 1919, photographed stars near the sun during a total solar eclipse. He found that light passed near the sun was bent by the curvature of space due to its gravity. This is the moment Einstein became a celebrity.
#generalrelativity
#einstein
why is this not just a distortion of space but also of time?...because special relativity says that light always moves at the same speed regardless of perspective or reference frame. This means that light will have the same speed in an accelerating reference frame as it will in a resting reference frame. But since the distance traveled by the beam of light in a gravitational field is longer due the curving of space, in order for the speed of light to remain constant, time itself must pass slower in the gravitational field relative to time in empty space.
General relativity does not answer everything. Although it tells us how gravity works, it doesn’t really tell us what exactly it is.
Go to http://www.squarespace.com/arvinash to get a free SquareSpace trial, and 10% off your first purchase of a website or domain.
Rocket Science and orbital mechanics of Satellites.
There are about 3000 operational satellites, owned by over 100 different countries orbiting the earth right now. About 550 of these are in geo stationary orbits - the satellite appears stationary compared to the rotation of the earth. Communications satellites are typically in such orbits. These allow you to leave your satellite dish in one position, and never have to change it.
Orbital mechanics is rooted in Keppler’s laws of planetary motion & Newton’s laws of universal gravitation.
These laws allow us to calculate the period and speed of such a satellite.
Speed = S = sq root(mu/r) mu= standard gravitational parameter
Period = T = 2pi*sq root(r^3/mu)
r = radius of orbit = altitude + radius of earth
mu = Newton’s universal gravitational constant x mass of planet
A geostationary orbit is 35,786 km from the equator. The orbital period is 23.93 hours, or 23 hours 56 minutes which is the time it actually takes for the earth to complete one rotation. The reason we normally count 24 hours as being one day, is because 24 hours is the precise time the sun is at the same spot in the sky every day.
To got into its orbit, the satellite is launched on a rocket. In the United States, one workhorse rocket has been the Atlas V. It weighs 700,000 lbs at launch and can lift 28,000 lbs to geostationary orbit. The main engine is powered by liquid oxygen, the oxidizer and RP-1 – which is form of kerosene, similar to jet fuel.
Rocket engines are an application of Newton’s third law, for every action, there is an equal and opposite reaction. The combustion of fuel causes high pressure exhaust gases to be expelled at supersonic speed. The rearward acceleration of the mass of the fuel leaving the rocket nozzle causes the equal and opposite reaction of forward thrust powering the rocket upward.
Maintaining a stable straight flight comes from swiveling the thrust nozzle to keep it stable. This is called gimbaled thrust.
A geosynchronous orbit is achieved in stages. Typically, the rocket takes the satellite on its orbital altitude, but the initial orbit is elliptical. This elliptical orbit has to be changed to a circular orbit to become geostationary. The satellite continues on an elliptical orbit until accelerating the rocket at precisely the right time during its trajectory forms a circular orbit at the geostationary distance, which is at 35,786 km above the earth’s equator. There is no other geostationary orbit.
Since there are 500 satellites at that altitude, the real estate is limited. This real estate at the geo stationary orbit is tightly controlled by an organization called, the international telecommunications union (ITU) which assigns each satellite a slot at this perimeter.
In addition, unless the rocket is launched from somewhere in the equator, it will have an orbit that is not quite geo stationary because it will not be in line or in the same plane relative to the equator. So for example, when satellites are launched from Cape Canaveral, which is located at about 28.5 degrees north latitude, the orbit will be inclined 28.5 degrees from the equator. This has to be adjusted, in a directional change requiring fuel. Thus, it is beneficial for countries to launch their rockets as close to the equator as possible so that less rocket fuel is needed to make this adjustment.
The first thing that happens after a satellite reaches its permanent orbit is that solar panels are deployed so that the satellite can have power to function. It orients itself relative to the sun and the earth, and establishes communication links. The main function of the satellite is to receive signals from earth mainly in the form of radio transmissions, amplify them, and relay them back at a different frequency back to the surface of the earth. The shift in frequency is used to prevent interference of incoming signals with outgoing signals.
#geostationary
#rocketscience
#satellites
since radio waves are a form of electromagnetic radiation, same as visible light, they do not bend around the curvature of earth – photons are too fast after all, the job of the satellite is to transmit radio waves over long distances. Otherwise, this would require a string of thousands of relay stations on earth to do the same task.
Interestingly, a geostationary orbit is sometimes called the Clarke orbit, named for science fiction writer Arthur C. Clarke, who wrote 2001-a space odyssey. Believe it or not, he was the first person to detail the usefulness of such an orbit in a story he wrote back in 1945.
Would You Try Deathdiving?!😱 #shorts
This is the first song in Morteza's "Robot" album
Let's make your new Halloween fangs!
Walking you through the process 00:00-10:45
Sticky material sounds 10:45-18:45
Wiping your face 18:45-22:00
More sticky sounds 22:00-28:20
Cleaning you up and sending you home 28:20-34:45
_____________________________
HUGE thank you to tyforrez for the custom fangs off of my throne wishlist! It took a bit for the shop to finish them up but they were worth the wait- and just in time for Halloween season! Guess that means you'll all be seeing a certain Havenmoor character again soon 👀.
✨Thanks to all my awesome members! Click here to join the Patreon crew: https://www.patreon.com/musingmira
🎁 I'm a Throne Partner! Find my props/Costume/Etc wishlist here!: https://throne.me/u/musingmiraasmr/wishlist
🛒 Want to shop my setup? Checkout my Amazon storefront!:
https://www.amazon.com/shop/mu....singmiraasmr?ref_=cm
💛Thanks for reading all the way down here- I hope you have an extra sweet night's rest.
_____________________________
(Disclaimer: While my content is intended to help with relaxation and sleep it cannot, nor is it intended to replace professional treatment. If you are battling with psychological troubles please consult a licensed physician.)
#asmr #asmrsounds #tingles #sleep #dentist #roleplay #stickysounds
شادمهر عقیلی - حق بده
Shadmer Aghili, روزبه بمانی, AI, هوش مصنوعی, Etefagh, Rozbeh bemani
متن آهنگ امیر اصلانی بچه پایین
───┤ ♩♫♪♭ ├───
تو که برا من همیشه از عشق میگفتی یه روزی
حالا واسه کی دم میزنی یالانچی پیزوری
حرف اینه دلبرکم عشق لیاقت میخواد
اینو که نداری میدونم هرچی بگم بهت میاد
اشک چشاتو میدیدم هق میزدم من برات
فکر نکنم گریه کنی محل بزاره برات
حالا میگم عشقمو به چند تومن فروختی
منو چی میشناسه یا از بچه پایین نگفتی؟
خار بودم هرچی گله فدای نامردیات
بچه فقیر بودم برو شاسی بلند بهت میاد
تو که برا من همیشه از عشق میگفتی یه روزی
حالا واسه کی دم میزنی یالانچی پیزوری
آخ یادته یه روز سلامتی جفت چشات میخوردم
سلامتی خودمو خودت خیلی شبا میخوردم
میگفتی نوش نوش شدش فدای نامردیات
بچه پایین بودم برو شاسی بلند بهت میاد
من بچه پایین بودم امیر اصلانی کلیپ کامل جدید
مجید علیپور —دلم گیره
Professional Red Bull cliff diver Molly Carlson dives into the beautiful sacred Takachiho Gorge in Japan and tells us how she is feeling beforehand
Two instruments (Saaz) being heard are the Kamanche (bow-like instrument similar to the violin) and Tombak (drum).
Performed by a north-western Iranian group called the Lors who (alongside the Bakhtiaris) are believed to be the descendants of the ancient Persians (Parsi).
The official Games Without Frontiers video.
Follow Peter Gabriel on Spotify: https://open.spotify.com/artis....t/7C4sUpWGlTy7IANjru
Options to buy or stream:
http://smarturl.it/PeterGabriel3
A top 5 single in the UK, Games Without Frontiers is taken from Peter's third self titled solo album. Recorded both at his home studio at Ashcombe House, near Bath, and at London’s Townhouse Studios, the album was produced by Steve Lillywhite.
The album saw Peter change his writing style; now the rhythm came before the melody and the songs were built up on top of the rhythmic sequences. The album also contains Peter’s first overtly political song in the shape of totemic closer Biko. It also features notable contributions from Kate Bush, Paul Weller, Phil Collins and David Rhodes.
# http://petergabriel.com
Jeux sans frontières
Jeux sans frontières
Jeux sans frontières
Jeux sans frontières
Hans plays with Lotte
Lotte plays with Jane
Jane plays with Willi
Willi is happy again
Suki plays with Leo
Sacha plays with Britt
Adolf builds a bonfire
Enrico plays with it
Whistling tunes we hide in the dunes by the seaside
Whistling tunes we're kissing baboons in the jungle
It's a knockout
If looks could kill they probably will
In games without frontiers
War without tears
If looks could kill they probably will
In games without frontiers
War without tears
Games without frontiers
War without tears
Jeux sans frontières
Jeux sans frontières
Jeux sans frontières
Andre has a red flag
Chiang Ching's is blue
They all have hills to fly them on
Except for Lin Tai Yu
Dressing up in costumes
Playing silly games
Hiding out in tree tops
Shouting out rude names
Whistling tunes we hide in the dunes by the seaside
Whistling tunes we piss on the goons in the jungle
It's a knockout
If looks could kill they probably will
In games without frontiers
War without tears
If looks could kill they probably will
In games without frontiers
War without tears
Games without frontiers
War without tears
Jeux sans frontières, Jeux sans frontières
Jeux sans frontières, Jeux sans frontières
Jeux sans frontières, Jeux sans frontières
Jeux sans frontières, Jeux sans frontières
Jeux sans frontières, Jeux sans frontières
#musicvideo
hilarious !!!!
Provided to YouTube by Morteza Ashrafi
Salam Salam Divooneh · Morteza Ashrafi · Omid Sarebani · Moein Adim · Morteza Ashrafi
Salam Salam Divooneh
℗ Morteza Ashrafi
Released on: 2019-12-29
Auto-generated by YouTube.
While biking along the roads of Pointe-Taillon National Park, this cyclist came across a family of skunks. All of them rushed towards him and sniffed him before running back into the wild.
Subscribe For More Videos: http://bit.ly/DailyPicksAndFlicksYT
Like Us On Facebook: http://bit.ly/DailyPicksAndFlicksFB
Follow Us On Twitter: http://bit.ly/DailyPicksAndFlicksTW
Hi and welcome to Daily Picks and Flicks – viral videos, funny pictures and odd news blog. We cover all the funny, interesting and strange stuff that is buzzing around the world. The weirder the better. Each day, we surf the web in an effort to find interesting, entertaining and unique videos, pictures and weird news stories. If you like what you find here, please recommend us to your friends. We already like you.
To license any of the videos shown on Daily Picks And Flicks, visit Jukin Media at http://jukinmedia.com/licensing
